Bicycle MechanicsBroken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

My rear brake has a dry, scratchy, scraping sound to it. I checked the pads and there does not appear to be any grit or gravel caught in them, plus they have only 300 miles. I also cleaned off the contact point all the way around the rim, both sides, but no change. I have bontrager race lite rims and ultegra brake pads. Any ideas would be greatly appreciated. thanks